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alpha-Naphtholbenzein, Thermo Scientific Chemicals Product Code.: 11493157
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alpha-Naphtholbenzein, Thermo Scientific Chemicals

Product Code. 11493157
25 g
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Quantity:
5 g
25 g
100 g
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Product Code. 11493157

Brand: Thermo Scientific Alfa Aesar A16125.14

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Description

α-Naphtholbenzein is used as a pH indicator. (pH 0.0-0.8/ pH 8.2-10.0).

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
α-Naphtholbenzein is used as a pH indicator. (pH 0.0-0.8/ pH 8.2-10.0).

Solubility
Soluble in ethanol, acetic acid and acetone. Insoluble in water.

Notes
Incompatible with strong oxidizing agents, acids, water reactive substances, azo, diazo, hydrazines, metals, nitrides, peroxides, hydroperoxides, epoxides and reducing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 145-50-6
Molecular Formula C27H18O2
Molecular Weight (g/mol) 374.439
MDL Number MFCD00078492
InChI Key VDDWRTZCUJCDJM-PNHLSOANSA-N
PubChem CID 5941340
IUPAC Name (4Z)-4-[(4-hydroxynaphthalen-1-yl)-phenylmethylidene]naphthalen-1-one
SMILES C1=CC=C(C=C1)C(=C2C=CC(=O)C3=CC=CC=C23)C4=CC=C(C5=CC=CC=C54)O

Specifications

Melting Point ∼225°C (decomposition)
Quantity 25 g
Beilstein 3471575
Synonym p-naphtholbenzein, 1-naphtholbenzein, alpha-naphtholbenzein, .alpha.-naphtholbenzein, 4-4-hydroxynaphthyl phenylmethylene naphthalen-1-one, naphtholbenzein, 1 4h-naphthalenone, 4-4-hydroxy-1-naphthalenyl phenylmethylene, 1 4h-naphthalenone,4-4-hydroxy-1-naphthalenyl phenylmethylene, 1 4h-naphthalenone, 4-.alpha.-4-hydroxy-1-naphthyl benzylidene
Solubility Information Soluble in ethanol,acetic acid and acetone. Insoluble in water.
Formula Weight 374.44
Chemical Name or Material alpha-Naphtholbenzein

Safety and Handling

compliance-icons
Product Identifier
  • alpha-Naphtholbenzein
 Signal Word
  • Warning
 Hazard Category
  • Serious eye damage/eye irritation Category 2
  • Skin corrosion/irritation Category 2
  • Specific target organ toxicity Category 3
 Hazard Statement
  • H315-Causes skin irritation.
  • H319-Causes serious eye irritation.
  • H335-May cause respiratory irritation.
 Precautionary Statement
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
  • P302+P352-IF ON SKIN: Wash with plenty of water/soap.
  • P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
  • P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P312-Call a POISON CENTER/doctor/if you feel unwell.
 Supplemental information
  • MIXTURE LIST-Contains : alpha-Naphtholbenzein
SDS

RUO – Research Use Only

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